EASY
Earn 100

When benzaldehyde (or any other aromatic aldehyde) is heated with anhydride of an aliphatic acid (containing two -hydrogen atoms) in presence of its sodium salt, condensation takes place to form an unsaturated carboxylic acid. This reaction is called
(a)Perkin reaction
(b)Claisen-Schmidt reaction
(c)Witting reaction
(d)Benzoin condensation

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Important Questions on Aldehydes, Ketones and Carboxylic Acids
EASY
The product formed by the reaction of an aldehyde with a primary amine is:

MEDIUM
The major product of the following reaction is:

HARD
Positive Tollen's test is observed for

EASY
In the following reaction

HARD
Explain the mechanism of the Claisen Schmidt reaction.

MEDIUM
The major product 'X' formed in the following reaction is:

HARD
The major product of the following reaction sequence is


HARD
The major product of the following reaction is:

MEDIUM
Reaction of benzaldehyde with acetic anhydride in the presence of base is known as _____ and the product

EASY
Mention the reagents used for the following conversions:
(m)
(n)
(o)
(p)
(q)
(r)

MEDIUM
In the following reactions, products and are:

MEDIUM
Which is the main organic product obtained by the reaction of trichloro ethanal with calcium hydroxide?

MEDIUM
The major product formed in the following reaction is:

MEDIUM
Which of the following reagents would distinguish cis-cyclopenta-1, 2-diol from the trans-isomer?

HARD
The test performed on compound and their inferences are:
Test | Inference |
- test | Coloured precipitate yellow |
Iodoform test | Yellow precipitate |
Azo-dye test | No dye formation |
Compound is:

MEDIUM
The major product of the following reaction is:

HARD
The major product obtained in the following reaction is:

HARD
Reagent(s) which can be used to bring about the following transformation is(are)

EASY
Write chemical equations to illustrate the following name reactions: Benzoin condensation.

EASY
Which compound does not give Benedict test?

